<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
   <!-- <style>
        img {
            /*倒影效果 出现在图像的下边 边距为五个像素*/
             -webkit-box-reflect: below 5px;&ndash;&gt;
    </style>-->
    <script src="js/jquery-3.1.1.min.js"></script>
</head>
<body>
<!--<img src="image/2.jpg" />-->
<div>1</div>
<div>2</div>
<div>3</div>
<input type="button" value="点击">
<script>
    $("input").click(function () {
       $("div").each(function (i) {
           $(this).html("这是第"+(i+1)+"个div");
       });
    });
</script>
</body>
</html>